IS220PVIBH1A, REV C - Vibration Monitor Board

SPECIFICATIONS:

Part Number: IS220PVIBH1A, REV C
Manufacturer: General Electric
Series: Mark VIe
Function: Vibration Monitor Board
Number of Channels: 12
Thermocouple Types: E, J, K, S
Common Mode Voltage: +5 Volts
Normal Mode Rejection: 250 mV
Operating temperature: -30 to 65 °C
Size: 8.26 cm wide x 4.19 cm
Technology: Surface Mount
Repair: 3-7 days
Availability: In Stock
Country of Origin: United States
Manual: GEH-6721G

FUNCTIONAL DESCRIPTION:

IS220PVIBH1A, REV C is a Vibration Monitor Board manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. The Vibration Monitor (PVIB) pack is designed to serve as the electrical interface between one or two I/O Ethernet networks and the TVBA vibration terminal board. It is built with a processor board common to all Mark* VIe distributed I/O packs, and it also includes an acquisition board and a daughterboard to handle signal processing and communication tasks.

The PVIB pack is responsible for collecting vibration or proximity data from various sensors. Channels 1 through 8 support inputs from multiple sensor types, including Proximitors, Velomitor, seismics, and integrated-output accelerometers (only on channels 1 to 3). Channels 9 through 12 are dedicated solely to Proximitor sensors, while channel 13 is configurable to accept either a Keyphasor signal or a proximity-type input, offering flexibility in monitoring machine shaft dynamics or position.

For connectivity, the PVIB pack uses dual RJ45 Ethernet connectors for network communication and a 3-pin input for power. It supports both single and dual Ethernet network configurations. Dual networks are used when frame rates are lower than 100 Hz, whereas single networks accommodate standard frame rates such as 3.125, 6.25, 12.5, 25, 50, and 100 Hz, depending on the application’s requirements.

Data output from the PVIB is routed through a DC-37 connector, which links directly to the associated terminal board. The unit is equipped with LED indicators to assist with visual diagnostics, making troubleshooting easier for technicians. Additionally, an infrared port is available for local serial communication, allowing for efficient maintenance and configuration without disrupting normal operations.

INSTALLATION:

• Mount the Terminal Board Securely: Begin by selecting a suitable location for the terminal board, ensuring that it is mounted on a stable surface or within an appropriate enclosure. This ensures that the board remains secure during operation. Use the provided mounting holes or slots to securely attach the terminal board to the surface, making sure it is aligned properly to accommodate the I/O packs and other components.

• Insert PVIB I/O Packs into the Terminal Board: Depending on your system configuration, plug the required number of PVIB I/O packs into the terminal board connectors. For a simplex system, a single PVIB I/O pack is needed. For a Triple Modular Redundant (TMR) system, insert three PVIB I/O packs. Each pack is designed to fit precisely into the connectors on the terminal board, ensuring proper functionality once connected.

• Secure the I/O Packs Mechanically: Once the I/O packs are inserted into the connectors, use the threaded studs located next to the Ethernet ports to mechanically secure the packs. These threaded studs slide into a mounting bracket that is specifically designed for the type of terminal board you are using. When positioning the bracket, ensure it is adjusted correctly so that no right-angle force is applied to the DC-37 pin connector between the I/O pack and the terminal board. This alignment is crucial for preventing any strain or damage to the connectors. This adjustment typically only needs to be done once during installation, as it is a one-time setup for the life of the product.

• Connect Ethernet Cables: Depending on your system’s configuration, you will need to plug in either one or two Ethernet cables. The PVIB I/O pack supports dual Ethernet connections, but it can also operate with just one. If you are using two Ethernet connections, ensure that ENET1 is connected to the network associated with the R controller. This is the standard configuration practice, ensuring proper network communication between the I/O pack and the controller. Double-check to make sure the Ethernet cables are plugged securely into the corresponding ports.

• Apply Power to the I/O Pack: Once the Ethernet connections are in place, apply power to the I/O pack by plugging in the connector located on the side of the pack. There is no need to disconnect the power cable before inserting the connector, as the I/O pack has a built-in soft-start capability. This feature helps to control the current inrush when power is applied, preventing any potential damage or issues that might occur from a sudden surge in power.

• Configure the I/O Pack: After applying power, configure the I/O pack according to the system’s requirements. This may involve adjusting settings such as network parameters, communication protocols, or other parameters specific to your application. Follow the manufacturer’s guidelines and system specifications to ensure proper configuration of the I/O pack for seamless integration into your system.

• Verify Proper Seating of the TVBA’s N28 Power Supply Daughterboard: Finally, ensure that the TVBA’s N28 power supply daughterboard is properly seated in the TVBA connector. This step is crucial for ensuring reliable power distribution to the system. Inspect the daughterboard to confirm it is securely connected and seated fully in the connector. Any improper seating could result in power issues or system instability, so this verification step is essential for proper system operation.

OPERATION:

• High-speed processor with RAM and flash memory
• Two fully independent 10/100 Ethernet ports with connectors
• Hardware watchdog timer and reset circuit
• Internal 1/0 pack temperature sensor
• Infrared serial communications port
• Status-indication LEDs
• Electronic ID and the ability to read IDs on other boards
• Substantial programmable logic supporting the acquisition board
• Input power connector with soft start/current limiter
• Local power supplies, including sequencing and monitoring

The processor board interfaces with an acquisition board tailored to the specific function of the I/O pack. When input power is applied, the soft-start circuit gradually increases the voltage supplied to the processor board. This triggers the sequencing of local power supplies and removes the processor reset. The processor then runs self-test routines before loading the application code, which is stored in flash memory, and is specific to the I/O pack type.

The application code verifies board compatibility by reading the board ID to confirm that the application code, acquisition board, and terminal board match correctly. Once a successful match is confirmed, the processor initiates Ethernet communication by requesting a network address using the Dynamic Host Configuration Protocol (DHCP) and the unique identification from the terminal board.

WOC has the largest stock of GE Distributed Control System Replacement Parts. We can also supply unused and rebuilt backup with a warranty. Our team of experts is available around the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

How does the Vibration Monitor Board optimize data accuracy in challenging environments?

The Vibration Monitor Board is specifically designed to operate accurately in environments with high mechanical stress, electrical noise, and temperature variations. It utilizes advanced signal filtering algorithms to isolate meaningful vibration data from external noise, ensuring that the measurements remain precise even under disruptive conditions.

What are the benefits of advanced signal processing in vibration monitoring?

The Vibration Monitor Board employs advanced signal processing techniques such as the Fourier Transform and Fast Fourier Transform (FFT) to analyze vibration data more accurately. By converting the data from the time domain to the frequency domain, these techniques allow for the identification of specific faults like misalignments, bearing defects, and imbalances.

What are the common features of a vibration monitor board?

Features often include real-time monitoring, multiple sensor inputs, signal conditioning, filtering, threshold detection, alarm outputs, and communication interfaces like 4- 20mA, Modbus, or RS485.